Since there is a zero in the hundred thousand spot and the number in the ten thousand spot is a 7 which is larger than 5, you round the 0 in the hundred thousand spot to a 1.
So, your answer is 100,000
3156770 = 3200000 to the nearest hundred thousand.
2,000,345 to the nearest hundred thousand is 2,000,000
5416755 rounded to the nearest hundred thousand is 5400000.
0.8394263 rounded to the nearest hundred-thousand = 0.83943
2479015 rounded to the nearest hundred thousand is 2500000.
57,633,712 rounded to the nearest hundred thousand is 57,600,000.
Nearest hundred: 82600,Nearest ten thousand: 80000.
146,389 rounded to the nearest hundred thousand is 100,000.
It is then 800,000 to the nearest hundred thousand
It is 400,000 when rounded to the nearest hundred thousand
6,329,451 rounded to the nearest hundred thousand is 6300000
To round 125,458 to the nearest hundred thousand, you look at the hundred thousand place, which is 1 in this case. The digit to the right, in the ten thousand place, is 2. Since 2 is less than 5, you round down, resulting in 100,000 as the nearest hundred thousand.