To find all the divisors of the number 741,740,734:
- 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 741,740,734:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
741,740,734 = 2 × 72 × 19 × 398,357
741,740,734 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) × (2 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 741,740,734
- 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 =
7
composite factor = 2 × 7 =
14
prime factor =
19
composite factor = 2 × 19 =
38
composite factor = 7
2 =
49
composite factor = 2 × 7
2 =
98
composite factor = 7 × 19 =
133
composite factor = 2 × 7 × 19 =
266
composite factor = 7
2 × 19 =
931
composite factor = 2 × 7
2 × 19 =
1,862
This list continues below...
... This list continues from above
prime factor =
398,357
composite factor = 2 × 398,357 =
796,714
composite factor = 7 × 398,357 =
2,788,499
composite factor = 2 × 7 × 398,357 =
5,576,998
composite factor = 19 × 398,357 =
7,568,783
composite factor = 2 × 19 × 398,357 =
15,137,566
composite factor = 7
2 × 398,357 =
19,519,493
composite factor = 2 × 7
2 × 398,357 =
39,038,986
composite factor = 7 × 19 × 398,357 =
52,981,481
composite factor = 2 × 7 × 19 × 398,357 =
105,962,962
composite factor = 7
2 × 19 × 398,357 =
370,870,367
composite factor = 2 × 7
2 × 19 × 398,357 =
741,740,734
24 factors (divisors)
What times what is 741,740,734?
What number multiplied by what number equals 741,740,734?
All the combinations of any two natural numbers whose product equals 741,740,734.
1 × 741,740,734 = 741,740,734
2 × 370,870,367 = 741,740,734
7 × 105,962,962 = 741,740,734
14 × 52,981,481 = 741,740,734
19 × 39,038,986 = 741,740,734
38 × 19,519,493 = 741,740,734
49 × 15,137,566 = 741,740,734
98 × 7,568,783 = 741,740,734
133 × 5,576,998 = 741,740,734
266 × 2,788,499 = 741,740,734
931 × 796,714 = 741,740,734
1,862 × 398,357 = 741,740,734
12 unique multiplications The final answer:
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