How to you solve the prime factor of 98?

Answer 1

First, check to see if the number you are working with is a composite or Prime number, by checking to see if it will divide by anything other than 1 or itself. In this case 98 is not prime, and is indeed a composite number, because it will divide by 2. 98/2 = 49. 49 is an odd, not an even number, so if it divides, it will only divide by odd numbers. First try dividing by 3 (The lowest odd number other than 1), then 5, then 7 etc. In this case, 49 divides by 7. This completes the computation because 7 will not divide, and is already prime. 2 x (7x7) = 98. The prime factors of 98 are 2 and 7.