what is the exponent for 3,087?

Question

What is the exponent for 3,087?

Answer 1

Let's factorize this number. Clearly. this number is not even, so we can not divide it by 2. The smallest prime number we can divide by is 3 (if sum of all is digits divisible by 3 (or 9) then we can divide by 3 whole number by 3 (or 9) 3+0+8+7=18)
3,087/3=1,029
1,029/3=343
343/7=49
49/7=7
Now let's rewrite given number by using exponents 3,087 = (3^2)(7^3) . The exponent is 5 (2+3, by analogy with polynomials)