#include <iostream>
#include <math.h>
#include <cstdint>
#include <string.h>
#include <algorithm>

#define UINT uint64_t

UINT numOfDigits(UINT num)
{
    UINT res = 0;

    if (num == 0) return 1;

    do {
        if (num == 0) break;
        num /= 10;
        res++;
    } while (1);

    return res;
}

UINT multiplyDigits(UINT num)
{
    UINT res = 1;

    if (num == 0) return 0;

    do {
        if (num == 0)
        {
            break;
        }

        res *= num % 10;
        num /= 10;
    } while (1);

    return res;
}

bool sameDigits(UINT num1, UINT num2)
{
    if (numOfDigits(num1) == numOfDigits(num2))
    {
        char buff1[256], buff2[256];

        snprintf(buff1, sizeof(buff1), "%ld", num1);
        snprintf(buff2, sizeof(buff2), "%ld", num2);

        UINT len = (UINT)strlen(buff1);

        for (UINT i = 0; i < len; i++)
        {
            bool found = false;

            for (UINT j = 0; j < len; j++)
            {
                if (buff1[i] == buff2[j])
                {
                    found = true;
                }
            }

            if (!found)
                return false;
        }
    }

    return true;
}

int main()
{
    UINT t = 0, n = 0, a = 0, b = 0;

    std::cin >> t;

    for (UINT i = 0; i < t; i++)
    {
        std::cin >> n >> a >> b;

        UINT nDigits = numOfDigits(n);

        UINT ab = a * (UINT)pow(10, numOfDigits(b));
        ab += b;

        if (n == a * b &&
            nDigits / 2 == numOfDigits(a) && nDigits / 2 == numOfDigits(b) &&
            !(a % 10 == 0 && b % 10 == 0) &&
            /*sameDigits(n, ab))
            {
                std::cout << "YES" << std::endl;
            }
            else
            {
                std::cout << "NO" << std::endl;
            }*/


            multiplyDigits(n) == (multiplyDigits(a) * multiplyDigits(b)))
            {
                std::cout << "YES" << std::endl;
            }
            else
            {
                std::cout << "NO" << std::endl;
            }


        /*
        if (n != a * b)
        {
            coutNo();
            continue;
        }

        if (nDigits / 2 != numOfDigits(a) || nDigits / 2 != numOfDigits(b))
        {
            coutNo();
            continue;
        }

        if (a % 10 != 0 || b % 10 != 0)
        {
            coutNo();
            continue;
        }

        if (multiplyDigits(n) != multiplyDigits(a) * multiplyDigits(b))
        {
            coutNo();
            continue;
        }
        */
    }

    return 0;
}