Q: What are the prime factors of the number 620,146,200?

 A: 2, 3, 5, 47, 21991

Why are those the prime factors of the number 620,146,200?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 620,146,200

620,146,200
Factor Arrows
2310,073,100
Factor Arrows
2155,036,550
Factor Arrows
277,518,275
Factor Arrows
325,839,425
Factor Arrows
55,167,885
Factor Arrows
51,033,577
Factor Arrows
4721,991

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 47, 21991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 47 x 21,991 = 620,146,200

This can also be written as 23 x 31 x 52 x 471 x 21,9911 = 620,146,200

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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