To find all the divisors of the number 3,000,000,421:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 3,000,000,421:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,000,000,421 = 11 × 17 × 19 × 199 × 4,243
3,000,000,421 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,000,000,421
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
11
prime factor =
17
prime factor =
19
composite factor = 11 × 17 =
187
prime factor =
199
composite factor = 11 × 19 =
209
composite factor = 17 × 19 =
323
composite factor = 11 × 199 =
2,189
composite factor = 17 × 199 =
3,383
composite factor = 11 × 17 × 19 =
3,553
composite factor = 19 × 199 =
3,781
prime factor =
4,243
composite factor = 11 × 17 × 199 =
37,213
composite factor = 11 × 19 × 199 =
41,591
composite factor = 11 × 4,243 =
46,673
This list continues below...
... This list continues from above
composite factor = 17 × 19 × 199 =
64,277
composite factor = 17 × 4,243 =
72,131
composite factor = 19 × 4,243 =
80,617
composite factor = 11 × 17 × 19 × 199 =
707,047
composite factor = 11 × 17 × 4,243 =
793,441
composite factor = 199 × 4,243 =
844,357
composite factor = 11 × 19 × 4,243 =
886,787
composite factor = 17 × 19 × 4,243 =
1,370,489
composite factor = 11 × 199 × 4,243 =
9,287,927
composite factor = 17 × 199 × 4,243 =
14,354,069
composite factor = 11 × 17 × 19 × 4,243 =
15,075,379
composite factor = 19 × 199 × 4,243 =
16,042,783
composite factor = 11 × 17 × 199 × 4,243 =
157,894,759
composite factor = 11 × 19 × 199 × 4,243 =
176,470,613
composite factor = 17 × 19 × 199 × 4,243 =
272,727,311
composite factor = 11 × 17 × 19 × 199 × 4,243 =
3,000,000,421
32 factors (divisors)
What times what is 3,000,000,421?
What number multiplied by what number equals 3,000,000,421?
All the combinations of any two natural numbers whose product equals 3,000,000,421.
1 × 3,000,000,421 = 3,000,000,421
11 × 272,727,311 = 3,000,000,421
17 × 176,470,613 = 3,000,000,421
19 × 157,894,759 = 3,000,000,421
187 × 16,042,783 = 3,000,000,421
199 × 15,075,379 = 3,000,000,421
209 × 14,354,069 = 3,000,000,421
323 × 9,287,927 = 3,000,000,421
2,189 × 1,370,489 = 3,000,000,421
3,383 × 886,787 = 3,000,000,421
3,553 × 844,357 = 3,000,000,421
3,781 × 793,441 = 3,000,000,421
4,243 × 707,047 = 3,000,000,421
37,213 × 80,617 = 3,000,000,421
41,591 × 72,131 = 3,000,000,421
46,673 × 64,277 = 3,000,000,421
16 unique multiplications The final answer:
(scroll down)