Q: What are the prime factors of the number 68,812,224?

 A: 2, 3, 13, 19, 1451

Why are those the prime factors of the number 68,812,224?

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 68,812,224

68,812,224
Factor Arrows
234,406,112
Factor Arrows
217,203,056
Factor Arrows
28,601,528
Factor Arrows
24,300,764
Factor Arrows
22,150,382
Factor Arrows
21,075,191
Factor Arrows
3358,397
Factor Arrows
1327,569
Factor Arrows
191,451

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, 13, 19, 1451

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 13 x 19 x 1,451 = 68,812,224

This can also be written as 26 x 31 x 131 x 191 x 1,4511 = 68,812,224

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


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