To find all the divisors of the number 142,737,390:
- 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 142,737,390:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
142,737,390 = 2 × 34 × 5 × 313 × 563
142,737,390 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) × (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 5 × 2 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 142,737,390
- 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
prime factor =
3
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 3
2 × 5 =
45
composite factor = 2 × 3
3 =
54
composite factor = 3
4 =
81
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
3 × 5 =
135
composite factor = 2 × 3
4 =
162
composite factor = 2 × 3
3 × 5 =
270
prime factor =
313
composite factor = 3
4 × 5 =
405
prime factor =
563
composite factor = 2 × 313 =
626
composite factor = 2 × 3
4 × 5 =
810
composite factor = 3 × 313 =
939
composite factor = 2 × 563 =
1,126
composite factor = 5 × 313 =
1,565
composite factor = 3 × 563 =
1,689
composite factor = 2 × 3 × 313 =
1,878
composite factor = 5 × 563 =
2,815
composite factor = 3
2 × 313 =
2,817
composite factor = 2 × 5 × 313 =
3,130
composite factor = 2 × 3 × 563 =
3,378
composite factor = 3 × 5 × 313 =
4,695
composite factor = 3
2 × 563 =
5,067
composite factor = 2 × 5 × 563 =
5,630
composite factor = 2 × 3
2 × 313 =
5,634
composite factor = 3 × 5 × 563 =
8,445
composite factor = 3
3 × 313 =
8,451
composite factor = 2 × 3 × 5 × 313 =
9,390
composite factor = 2 × 3
2 × 563 =
10,134
This list continues below...
... This list continues from above
composite factor = 3
2 × 5 × 313 =
14,085
composite factor = 3
3 × 563 =
15,201
composite factor = 2 × 3 × 5 × 563 =
16,890
composite factor = 2 × 3
3 × 313 =
16,902
composite factor = 3
2 × 5 × 563 =
25,335
composite factor = 3
4 × 313 =
25,353
composite factor = 2 × 3
2 × 5 × 313 =
28,170
composite factor = 2 × 3
3 × 563 =
30,402
composite factor = 3
3 × 5 × 313 =
42,255
composite factor = 3
4 × 563 =
45,603
composite factor = 2 × 3
2 × 5 × 563 =
50,670
composite factor = 2 × 3
4 × 313 =
50,706
composite factor = 3
3 × 5 × 563 =
76,005
composite factor = 2 × 3
3 × 5 × 313 =
84,510
composite factor = 2 × 3
4 × 563 =
91,206
composite factor = 3
4 × 5 × 313 =
126,765
composite factor = 2 × 3
3 × 5 × 563 =
152,010
composite factor = 313 × 563 =
176,219
composite factor = 3
4 × 5 × 563 =
228,015
composite factor = 2 × 3
4 × 5 × 313 =
253,530
composite factor = 2 × 313 × 563 =
352,438
composite factor = 2 × 3
4 × 5 × 563 =
456,030
composite factor = 3 × 313 × 563 =
528,657
composite factor = 5 × 313 × 563 =
881,095
composite factor = 2 × 3 × 313 × 563 =
1,057,314
composite factor = 3
2 × 313 × 563 =
1,585,971
composite factor = 2 × 5 × 313 × 563 =
1,762,190
composite factor = 3 × 5 × 313 × 563 =
2,643,285
composite factor = 2 × 3
2 × 313 × 563 =
3,171,942
composite factor = 3
3 × 313 × 563 =
4,757,913
composite factor = 2 × 3 × 5 × 313 × 563 =
5,286,570
composite factor = 3
2 × 5 × 313 × 563 =
7,929,855
composite factor = 2 × 3
3 × 313 × 563 =
9,515,826
composite factor = 3
4 × 313 × 563 =
14,273,739
composite factor = 2 × 3
2 × 5 × 313 × 563 =
15,859,710
composite factor = 3
3 × 5 × 313 × 563 =
23,789,565
composite factor = 2 × 3
4 × 313 × 563 =
28,547,478
composite factor = 2 × 3
3 × 5 × 313 × 563 =
47,579,130
composite factor = 3
4 × 5 × 313 × 563 =
71,368,695
composite factor = 2 × 3
4 × 5 × 313 × 563 =
142,737,390
80 factors (divisors)
What times what is 142,737,390?
What number multiplied by what number equals 142,737,390?
All the combinations of any two natural numbers whose product equals 142,737,390.
1 × 142,737,390 = 142,737,390
2 × 71,368,695 = 142,737,390
3 × 47,579,130 = 142,737,390
5 × 28,547,478 = 142,737,390
6 × 23,789,565 = 142,737,390
9 × 15,859,710 = 142,737,390
10 × 14,273,739 = 142,737,390
15 × 9,515,826 = 142,737,390
18 × 7,929,855 = 142,737,390
27 × 5,286,570 = 142,737,390
30 × 4,757,913 = 142,737,390
45 × 3,171,942 = 142,737,390
54 × 2,643,285 = 142,737,390
81 × 1,762,190 = 142,737,390
90 × 1,585,971 = 142,737,390
135 × 1,057,314 = 142,737,390
162 × 881,095 = 142,737,390
270 × 528,657 = 142,737,390
313 × 456,030 = 142,737,390
405 × 352,438 = 142,737,390
563 × 253,530 = 142,737,390
626 × 228,015 = 142,737,390
810 × 176,219 = 142,737,390
939 × 152,010 = 142,737,390
1,126 × 126,765 = 142,737,390
1,565 × 91,206 = 142,737,390
1,689 × 84,510 = 142,737,390
1,878 × 76,005 = 142,737,390
2,815 × 50,706 = 142,737,390
2,817 × 50,670 = 142,737,390
3,130 × 45,603 = 142,737,390
3,378 × 42,255 = 142,737,390
4,695 × 30,402 = 142,737,390
5,067 × 28,170 = 142,737,390
5,630 × 25,353 = 142,737,390
5,634 × 25,335 = 142,737,390
8,445 × 16,902 = 142,737,390
8,451 × 16,890 = 142,737,390
9,390 × 15,201 = 142,737,390
10,134 × 14,085 = 142,737,390
40 unique multiplications The final answer:
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