To find all the divisors of the number 1,307,692,304:
- 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 1,307,692,304:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,307,692,304 = 24 × 131 × 197 × 3,167
1,307,692,304 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,307,692,304
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- 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 =
2
composite factor = 2
2 =
4
composite factor = 2
3 =
8
composite factor = 2
4 =
16
prime factor =
131
prime factor =
197
composite factor = 2 × 131 =
262
composite factor = 2 × 197 =
394
composite factor = 2
2 × 131 =
524
composite factor = 2
2 × 197 =
788
composite factor = 2
3 × 131 =
1,048
composite factor = 2
3 × 197 =
1,576
composite factor = 2
4 × 131 =
2,096
composite factor = 2
4 × 197 =
3,152
prime factor =
3,167
composite factor = 2 × 3,167 =
6,334
composite factor = 2
2 × 3,167 =
12,668
composite factor = 2
3 × 3,167 =
25,336
composite factor = 131 × 197 =
25,807
This list continues below...
... This list continues from above
composite factor = 2
4 × 3,167 =
50,672
composite factor = 2 × 131 × 197 =
51,614
composite factor = 2
2 × 131 × 197 =
103,228
composite factor = 2
3 × 131 × 197 =
206,456
composite factor = 2
4 × 131 × 197 =
412,912
composite factor = 131 × 3,167 =
414,877
composite factor = 197 × 3,167 =
623,899
composite factor = 2 × 131 × 3,167 =
829,754
composite factor = 2 × 197 × 3,167 =
1,247,798
composite factor = 2
2 × 131 × 3,167 =
1,659,508
composite factor = 2
2 × 197 × 3,167 =
2,495,596
composite factor = 2
3 × 131 × 3,167 =
3,319,016
composite factor = 2
3 × 197 × 3,167 =
4,991,192
composite factor = 2
4 × 131 × 3,167 =
6,638,032
composite factor = 2
4 × 197 × 3,167 =
9,982,384
composite factor = 131 × 197 × 3,167 =
81,730,769
composite factor = 2 × 131 × 197 × 3,167 =
163,461,538
composite factor = 2
2 × 131 × 197 × 3,167 =
326,923,076
composite factor = 2
3 × 131 × 197 × 3,167 =
653,846,152
composite factor = 2
4 × 131 × 197 × 3,167 =
1,307,692,304
40 factors (divisors)
What times what is 1,307,692,304?
What number multiplied by what number equals 1,307,692,304?
All the combinations of any two natural numbers whose product equals 1,307,692,304.
1 × 1,307,692,304 = 1,307,692,304
2 × 653,846,152 = 1,307,692,304
4 × 326,923,076 = 1,307,692,304
8 × 163,461,538 = 1,307,692,304
16 × 81,730,769 = 1,307,692,304
131 × 9,982,384 = 1,307,692,304
197 × 6,638,032 = 1,307,692,304
262 × 4,991,192 = 1,307,692,304
394 × 3,319,016 = 1,307,692,304
524 × 2,495,596 = 1,307,692,304
788 × 1,659,508 = 1,307,692,304
1,048 × 1,247,798 = 1,307,692,304
1,576 × 829,754 = 1,307,692,304
2,096 × 623,899 = 1,307,692,304
3,152 × 414,877 = 1,307,692,304
3,167 × 412,912 = 1,307,692,304
6,334 × 206,456 = 1,307,692,304
12,668 × 103,228 = 1,307,692,304
25,336 × 51,614 = 1,307,692,304
25,807 × 50,672 = 1,307,692,304
20 unique multiplications The final answer:
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