To find all the divisors of the number 142,737,200:
- 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 142,737,200:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
142,737,200 = 24 × 52 × 79 × 4,517
142,737,200 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) × (2 + 1) × (1 + 1) × (1 + 1) = 5 × 3 × 2 × 2 = 60
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 142,737,200
- 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
prime factor =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 5
2 =
25
composite factor = 2
3 × 5 =
40
composite factor = 2 × 5
2 =
50
prime factor =
79
composite factor = 2
4 × 5 =
80
composite factor = 2
2 × 5
2 =
100
composite factor = 2 × 79 =
158
composite factor = 2
3 × 5
2 =
200
composite factor = 2
2 × 79 =
316
composite factor = 5 × 79 =
395
composite factor = 2
4 × 5
2 =
400
composite factor = 2
3 × 79 =
632
composite factor = 2 × 5 × 79 =
790
composite factor = 2
4 × 79 =
1,264
composite factor = 2
2 × 5 × 79 =
1,580
composite factor = 5
2 × 79 =
1,975
composite factor = 2
3 × 5 × 79 =
3,160
composite factor = 2 × 5
2 × 79 =
3,950
prime factor =
4,517
composite factor = 2
4 × 5 × 79 =
6,320
composite factor = 2
2 × 5
2 × 79 =
7,900
composite factor = 2 × 4,517 =
9,034
This list continues below...
... This list continues from above
composite factor = 2
3 × 5
2 × 79 =
15,800
composite factor = 2
2 × 4,517 =
18,068
composite factor = 5 × 4,517 =
22,585
composite factor = 2
4 × 5
2 × 79 =
31,600
composite factor = 2
3 × 4,517 =
36,136
composite factor = 2 × 5 × 4,517 =
45,170
composite factor = 2
4 × 4,517 =
72,272
composite factor = 2
2 × 5 × 4,517 =
90,340
composite factor = 5
2 × 4,517 =
112,925
composite factor = 2
3 × 5 × 4,517 =
180,680
composite factor = 2 × 5
2 × 4,517 =
225,850
composite factor = 79 × 4,517 =
356,843
composite factor = 2
4 × 5 × 4,517 =
361,360
composite factor = 2
2 × 5
2 × 4,517 =
451,700
composite factor = 2 × 79 × 4,517 =
713,686
composite factor = 2
3 × 5
2 × 4,517 =
903,400
composite factor = 2
2 × 79 × 4,517 =
1,427,372
composite factor = 5 × 79 × 4,517 =
1,784,215
composite factor = 2
4 × 5
2 × 4,517 =
1,806,800
composite factor = 2
3 × 79 × 4,517 =
2,854,744
composite factor = 2 × 5 × 79 × 4,517 =
3,568,430
composite factor = 2
4 × 79 × 4,517 =
5,709,488
composite factor = 2
2 × 5 × 79 × 4,517 =
7,136,860
composite factor = 5
2 × 79 × 4,517 =
8,921,075
composite factor = 2
3 × 5 × 79 × 4,517 =
14,273,720
composite factor = 2 × 5
2 × 79 × 4,517 =
17,842,150
composite factor = 2
4 × 5 × 79 × 4,517 =
28,547,440
composite factor = 2
2 × 5
2 × 79 × 4,517 =
35,684,300
composite factor = 2
3 × 5
2 × 79 × 4,517 =
71,368,600
composite factor = 2
4 × 5
2 × 79 × 4,517 =
142,737,200
60 factors (divisors)
What times what is 142,737,200?
What number multiplied by what number equals 142,737,200?
All the combinations of any two natural numbers whose product equals 142,737,200.
1 × 142,737,200 = 142,737,200
2 × 71,368,600 = 142,737,200
4 × 35,684,300 = 142,737,200
5 × 28,547,440 = 142,737,200
8 × 17,842,150 = 142,737,200
10 × 14,273,720 = 142,737,200
16 × 8,921,075 = 142,737,200
20 × 7,136,860 = 142,737,200
25 × 5,709,488 = 142,737,200
40 × 3,568,430 = 142,737,200
50 × 2,854,744 = 142,737,200
79 × 1,806,800 = 142,737,200
80 × 1,784,215 = 142,737,200
100 × 1,427,372 = 142,737,200
158 × 903,400 = 142,737,200
200 × 713,686 = 142,737,200
316 × 451,700 = 142,737,200
395 × 361,360 = 142,737,200
400 × 356,843 = 142,737,200
632 × 225,850 = 142,737,200
790 × 180,680 = 142,737,200
1,264 × 112,925 = 142,737,200
1,580 × 90,340 = 142,737,200
1,975 × 72,272 = 142,737,200
3,160 × 45,170 = 142,737,200
3,950 × 36,136 = 142,737,200
4,517 × 31,600 = 142,737,200
6,320 × 22,585 = 142,737,200
7,900 × 18,068 = 142,737,200
9,034 × 15,800 = 142,737,200
30 unique multiplications The final answer:
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